Implementation of grain mapping by diffraction contrast tomography on a conventional laboratory tomography setup with various detectors.

ABSTRACT: Laboratory-based diffraction contrast tomography (LabDCT) is a novel technique used to resolve grain orientations and shapes in three dimensions at the micrometre scale using laboratory X-ray sources, allowing the user to overcome the constraint of limited access to synchrotron facilities. To foster the development of this technique, the implementation of LabDCT is illustrated in detail using a conventional laboratory-based X-ray tomography setup, and it is shown that such implementation is possible with the two most common types of detectors: CCD and flat panel. As a benchmark, LabDCT projections were acquired on an AlCu alloy sample using the two types of detectors at different exposure times. Grain maps were subsequently reconstructed using the open-source grain reconstruction method re

SUBMITTER: Fang H 

PROVIDER: S-EPMC10241044 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature